Moderate mag. 4.5 earthquake - Gulf of Alaska, 40 mi east of Simeonof Island, Aleutians East County, Alaska, USA, on Wednesday, 22 July 2020 at 10:18 (GMT) -

This quake was likely an aftershock of the 7.8 quake Gulf of Alaska, 31 mi east of Simeonof Island, Aleutians East County, Alaska, USA, 22 July 2020 06:12 GMT, which had occurred 4 heures earlier.
Moderate mag. 4.5 earthquake - Gulf of Alaska, 40 mi east of Simeonof Island, Aleutians East County, Alaska, USA, on Wednesday, 22 July 2020 at 10:18 (GMT)

Séisme modéré magnitude 4.5 at 18 km depth

22 Jul 10:49 UTC: Premier à signaler: USGS après 31 minutes.
Jul 22 11:32: Magnitude recalculée de 4.6 à 4.5.
Profondeur recalculée de 26.8 à 17.6 km.
Date & time: 22 Jul 2020 10:18:22 UTC -
Magnitude: 4.5
Profondeur: 17.6 km
Epicenter latitude / longitude: 54.8136°N / 158.2757°W (Gulf of Alaska, Alaska, États-Unis)
Volcan le plus près: Stepovak Bay 2 (147 km / 91 mi)
Nearby towns and cities:
134 km SSE de Perryville (pop: 113) --> Voir les séismes à proximité!
153 km ESE de Sand Point (pop: 1,060) --> Voir les séismes à proximité!
163 km SSE de Chignik Lake (pop: 73) --> Voir les séismes à proximité!
167 km S de Chignik Lagoon (pop: 78) --> Voir les séismes à proximité!
238 km S de Port Heiden (pop: 98) --> Voir les séismes à proximité!
260 km E de King Cove (pop: 1,010) --> Voir les séismes à proximité!
287 km E de Cold Bay (pop: 123) --> Voir les séismes à proximité!
480 km SO de Kodiak Station (pop: 1,300) --> Voir les séismes à proximité!
490 km SO de Kodiak (pop: 6,250) --> Voir les séismes à proximité!
490 km ENE de Akutan (pop: 1,040) --> Voir les séismes à proximité!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) More info
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
MagnitudeProfondeurLocationSource
M 4.710 kmSouth of Alaska (USA)GFZ
M 4.630 kmSouth Of Alaska (USA)EMSC
M 4.518 km134 km SSE of Perryville, Alaska (USA)USGS

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!
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Earlier earthquakes in the same area

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